因此盐业史研究成为古代经济史中一个重要研究领域。
Therefore, study on the salt industry history is an important area of research in ancient economic history.
唐代盐业取得前所未有的进步，故唐代盐业史研究内涵丰富。
Salt made unprecedented progress in the Tang Dynasty, so salt industry of Tang Dynasty is rich in content.
20世纪以来，通过国内外一大批学者的共同努力，唐代盐业史研究被引向前所未有的高度，取得了丰硕的成果。
Since the 20~th century, because of many scholars efforts, the researches on the salt industry in the Tang Dynasty have gained delightful achievements.
在我国区域史研究中，明清山东盐业是学者们较少关注、研究较为薄弱的一个领域。
In the studies of the history of regional economy, the research on the Shandong's business of salt is a field which is less or unsubstantially studied.
在我国区域史研究中，明清山东盐业是学者们较少关注、研究较为薄弱的一个领域。
In the studies of the history of regional economy, the research on the Shandong's business of salt is a field which is less or unsubstantially studied.
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